Three groups have submitted technical and economic bids for a 1.76bn-peso (US$444mn) project to build six new stations on Argentine capital Buenos Aires' subway system.
The bids were presented by consortiums Techint-Dycasa, Roggio-Isolux-Esuco-Cartellone and OHL-Rovella Carranza, paper Clarin reported.
The expansion includes building six new stations on line H of the subway system, including Pompeya and Saenz to the south and Cordoba, Santa Fe, Las Heras and Plaza Francia to the north. Once the expansion is complete, the line will extend to 60km in total, with 16 stations.
A separate tender will be launched to provide rolling stock for the expanded subway line, the report said. Offers are due in April, and the project is budgeted at some 800mn pesos.